Referment is partnering with a leading pan-European trading platform to find a talented Unix Application Support Engineer to join their growing operations team in Madrid.

This is a fantastic opportunity to work in a high-performance, real-time trading environment, supporting critical systems that power financial markets across Europe and beyond.

The Role

You’ll be part of a highly skilled team responsible for supporting both production and test trading platforms, ensuring stability, performance, and reliability in a fast-paced environment.

This role is particularly exciting as the business expands into the US market, meaning you’ll play a key part in supporting international trading activity.

What You’ll Be Doing

• Monitoring trading platforms and responding to incidents
• Troubleshooting, recovery, and root cause analysis
• Automating tasks and reporting (Bash, Python, Perl)
• Supporting application deployments and change processes
• Working with financial messaging protocols (FIX / ITCH)
• Analysing Unix system performance
• Collaborating with Ops, QA, Dev, and Market Control teams
  
  

What We’re Looking For

• Strong Unix/Linux command line experience
• Scripting skills (Bash, Python and/or Perl)
• Solid troubleshooting and problem-solving ability
• Experience with monitoring tools and system performance
• Familiarity with regular expressions
• Confident communicator with a proactive mindset
• Fluent English (Spanish is a plus, but not essential)
  
  

Nice to Have

• Networking knowledge (TCP/IP, UDP, Multicast)
• Experience with low-latency systems
• Exposure to financial markets or trading environments
• Monitoring tools like Nagios / Opsview
• Basic SQL or web technologies
  
  

What’s On Offer

• Performance-related bonus
• Hybrid working (3 days in the office)
• Collaborative, international team environment
• Opportunity to work on cutting-edge trading systems
  
  

Please note: Candidates must have the right to work in Spain (no sponsorship available).

If you’re passionate about Unix systems, automation, and high-availability environments, and want to work in a role where your impact is immediate and visible, we’d love to hear from you.

#Referment